Moroso Air Oil Separator Small Body Raw Finish 2008-2014 STI GEN_2022-2026 GR86 the IAG AOS delivers a

the IAG AOS delivers a polished

Tuning Required: No (tuning recommended for additional gains)

or other critical metrics

preventing common issues such as engine bogging or check engine lights that can occur with less refined aftermarket intakes

Moroso Air Oil Separator Small Body Raw Finish 2008-2014 STI GEN_2022-2026 GR86 the IAG AOS delivers aFrom the factory excess crankcase vapors, residual oil and moisture are vented back into the intake manifold and crankcase ventilation system. This can coat the pistons and everything else with a detonation prone layer of oil. This is no good in a turbocharged vehicle. Moroso has come up with a 2 tank system that allows the factory crankcase ventilation to operate how it was designed. No other system on the market does this. Billet Aluminum bodies